Sodium Azide → HCID 86629099, compound

Participants

Reaction Steps

31.265 mmol of sodium azide are added to a solution of 6.253 mmol of (3R,4R,5S)-4-[4-((S)-3-methoxy-2-methyl-propoxymethyl)-phenyl]-3-[4-(3-methoxy-propyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]-5-(toluene-4-sulfonyloxymethyl) -piperidine-1-carboxylic acid benzyl ester in 50 ml of 1,3-dimethyl-tetrahydro -pyrimidin-2-one (DMPU) under argon at 45° C. After 5 hours, the reaction mixture is cooled to room temperature, diluted with tert-butyl methyl ether, washed with water and brine, dried with sodium sulfate and evaporated. The crude title compound is obtained as a yellow oil. Rf=0.58 (EtOAc-heptane 2:1); Rt=5.96 (gradient I).

Provenance & Evidence